[jmlloar]

the gmc uses rods from the firewall to rad support to stiffen it.
I would thonk the chevy would be worse gap wise since the rad support is held tight to the frame on both ends making it flex with the frame, where as the gmc is only held in the center allowing the frame to twist under it while keeping it in in line with the cab. My gap change should show at the bumper to grill area when the truck flexes instead of twisting the sheetmetal.

I flipped the complete tire rod assembly for oil pan clearance. I moved the engine forward about 2in and down about 1in so I didnt have to cut into the firewall. cut the drag link part off of the steering assembly so it was no big deal to put it on backwards. That idea is going anyway. Now it will be either a front clip or complete frame from 73 up. either way frame needs cut since the wheelbase is diff between the two.